QR code is more popular now, it's good for some smart phones to read its information. Like a unique identity, each QR code contains different information. QR Voice is a special site that creates unique QR code with voice, it means the code is readable, even with several different languages. You can type text (limits 100 characters), choose a language from put-down menu. After click button, it will display a QR code. This code contains a MP3 file that can be read with QR code readers. Pretty cool, is it? If you don't have iPhone, you can make it just for fun. Use that QR code link it can download a MP3 file.